patch: minimize calls to close() in spawn by calling poll()

[Werner Koch]

On Sun, 18 Nov 2018 20:49, dctucker at github.com said:

> Thank you for pointing this out. Since the default branch on the
> github mirror is set to `bjk/master`, I erroneously assumed it was the
> latest and greatest. I'll target `master` in the next patch.

Please do no use an arbitrary mirror but use git.gnupg.org or our own
mirror at dev.gnupg.org.

> poll() is available since Linux 2.1.23; what is the preferred macro to

GPGME is not Linux specific but needs to be build on all POSIX platforms
as well as Windows Vista and newer.


Shalom-Salam,

   Werner

-- 
Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.
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